"His quality, coupled with our patience, is a good combination. He does not need to score four goals in his first game.

"We want to help him become the player we see in him, who will be better than the one at [former club Borussia] Monchengladbach."

Asked what his stance was regarding the €17 million fee that BVB had to pay in order to prise him away from his former club - the highest fee ever received by Monchengladbach - Klopp was stoical.

"In footballthere isonly one principle, and thatis not based ontransfer fees,buton performances. Wehave paid€17m forhim and he is worth the money."

Who do you think should be Goal.com International's World Player of the Week this week? Leave your nomination in the comments section of THIS article between 10:00 every Sunday and 11:00CET every Monday. We will include some of the best suggestions in our winners piece.